A sheep farmer wants to develop a group of sheep
that are pure breeding for
white wool, as black wool is
not as profitable. If white
wool is dominant to black
explain how the farmer can
determine the genotypes of
the male and female to
produce sheep that all have
white wool

Idont see a question here

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.